Happily ran Mint-Debian-Xfce through two Debian upgrades. The update a month ago damaged Xfce so badly it would not run from the command-line. Downloaded & installed the latest distribution today; it ran satisfactorily. Then installed the 1672-upgrades. Well, those that Upgrade Manager could find. Again lost the GUI. Neither Firefox nor Xfce would run from the command-line.
How wrong would I be to ignore updates if everything I use works to my satisfaction?